handle TypeAlias to Swift.AnyObject

(cherry picked from commit 1122b69)

Author: kastiglione

lldb/source/Plugins/TypeSystem/Swift/TypeSystemSwiftTypeRef.cpp

@@ -1789,6 +1789,17 @@ bool TypeSystemSwiftTypeRef::IsPossibleDynamicType(opaque_compiler_type_t type,
     case Node::Kind::ProtocolListWithAnyObject:
     case Node::Kind::DynamicSelf:
       return true;
+    case Node::Kind::TypeAlias: {
+      if (node->getNumChildren() == 2) {
+        auto *module = node->getFirstChild();
+        auto *identifier = node->getLastChild();
+        return module->getKind() == Node::Kind::Module &&
+               identifier->getKind() == Node::Kind::Identifier &&
+               module->getText() == "Swift" &&
+               identifier->getText() == "AnyObject";
+      }
+      break;
+    }
     case Node::Kind::BuiltinTypeName: {
       if (!node->hasText())
         return false;